900-00275-01-001 Rev A
61
Operation
Figure 30 Repeated Charging (3
rd
, 4
th
, and 5
th
Cycles)
Prior to the beginning of Cycle 3, the AC input failed and all charging stopped. With loads being supported,
the battery voltage decreased below the level of the
Rebulk
set point. (Whenever this occurs, the Absorption
timer will reset to its maximum amount.) Note that in Figure 30, the voltage also decreased below the
Refloat
set point, resetting the Float timer to its maximum amount.
In Figure 30, Cycle 3 begins when charging is restored again. The charger begins a new cycle by
entering Bulk stage
.
When it enters Absorption, the timer runs until it is interrupted by another loss of
AC power.
During this power failure, the battery voltage decreases due to loads, but does not decrease below
Rebulk
. The Absorption timer retains the remaining time from Cycle 3.
Cycle 3 resumes when charging is restored again. The charger re-enters Absorption stage and raises the
battery voltage to the
Absorption
setting.
This stage does not last for the full duration of the
Absorb Time
setting. The timer uses up the remaining
time from the beginning of Cycle 3. Absorption ends when the timer expires. The charger enters Float.
The timer runs until it is interrupted by another loss of AC power.
During this power failure, heavy battery use causes the voltage to decrease below
Rebulk
. The
Absorption timer resets to its maximum amount. Note that the voltage also decreased below the
Refloat
set point, causing the Float timer to reset as well.
Cycle 4 begins when charging is restored again. It is triggered by the new Rebulk command. The
charger begins a new cycle by entering Bulk stage, proceeding through Absorption, and ending in Float.
Although Float stage was not completed in Cycle 3, the timer does not resume with the previous time
because it was reset after the last power failure. Instead, the Float timer runs through its full duration.
After that, it will continue alternating between the Idle, Refloat, and Float steps indefinitely as depicted in
Figure 29 and Cycle 2.
50
Remainder of Cycle 3
Cycle 3
Absorption
Set Point
Float
Set Point
Rebulk
Set Point
AC Loss
Absorption
timer resets
Abs.
timer
runs
(part)
Inverter waiting to charge when AC restored;
a new set point is in use
Inverter now charging to a new
set point
Inverter has reached the charging
set point
Inverter completed charging; the previous set point
is no longer in use
Inverter waiting to charge when AC restored;
the previous set point is still in use
AC Loss
AC Loss
Bulk Abs.
Float
Absorption
Float
Bulk
Absorption
Cycle 4
Absorption
and Float
timers
both reset
Absorption
timer runs
(remaining time)
Absorption
timer runs
(complete)
Float
timer
runs
(part)
Float timer
runs
(complete)
Refloat
Set Point
Содержание OutBack POWER Mojave OGHI8048A
Страница 1: ...Mojave Grid Hybrid Inverter Charger OGHI8048A Operator s Manual...
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